| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [indef pn] [prep] a [noun] | 2726 |
|
| 2 | [indef pn] [prep] a [noun sg] | 2631 |
|
| 3 | [pron] [prep] a while | 261 |
|
| 4 | [indef pn] [prep] [art] while | 14 |
|
| 5 | [indef pn] [prep] [art] while | 14 |
|
| 6 | [indef pn] [prep] a while | 14 |
|
| 7 | [indef pn] [prep] a while | 14 |
|
